Mr. Murray Nye reports

NORTH AMERICAN NIOBIUM ADDS SABOT TO TECHNICAL REVIEW PIPELINE

North American Niobium and Critical Minerals Corp.'s Bardy, Blanchette and Sabot projects in Quebec may be comparable in style with the large rare-earth element (REE) deposits found in Greenland. Initial prospecting results and geological observations suggest a broader area of interest. As such, the company has begun a technical review aimed at assessing Sabot's potential to be incorporated into near-term exploration planning alongside the priority Bardy and Blanchette projects.

Highlights

• Sabot added to near-term technical review pipeline based on recent prospecting results and geological context; Sabot is adjacent to the company's priority Bardy and Blanchette properties, supporting operational and logistical efficiencies;

• Prospecting grab sample (G170073) returned 0.155 per cent total rare earth oxides (TREO) and 313.12 parts per million of magnet rare earth oxides (MREO), including 76.72 parts per million praseodymium (Pr) and 228.61 parts per million neodymium (Nd);

• Geological setting at Sabot includes an alkaline intrusion in contact with metasediments; textures observed in the intrusion suggest interaction between the alkaline magma and the metasedimentary host rocks -- conditions that may have been ideal for the formation of a rare earth element (REE) and/or other critical element deposit;

• Conceptual exploration targets include potential silica-rich roof/contact zones and/or upper portions of an alkaline system that may be associated with REE mineralization and other elements such as niobium; additional surface work is required to refine and prioritize targets.

North American Niobium's 100-per-cent-owned Sabot project is approximately 45 kilometres northwest of the La Tuque municipality in Quebec. Although the company's exploration strategy in the province has consistently focused on its Bardy, Blanchette and Seigneurie projects, Sabot is close to Bardy and Blanchette. It benefits from existing regional access and the company's established stakeholder engagement efforts in the area. Sabot's location supports a co-ordinated approach to target development and potential drill planning, subject to review and approvals.

Sabot prospecting grab sample returns elevated rare earth element values

A prospecting grab sample collected during the fourth quarter of 2025 returned elevated rare earth element values. Results are summarized in the table.

Sabot prospecting grab sample (selected result). MREO in this release refers to the combined content of Nd + Pr + Dy + Tb (reported in parts per million), whereas TREO refers to total rare earth oxides.

Sample ID   Project   Rock type   TREO (%)   MREO (ppm)   Pr (ppm)   Nd (ppm)

G170073     Sabot     Granite     0.155      313.12       76.72      228.61  

Grab samples are selective by nature and may not be representative of mineralization hosted on the project.

Geologic rationale and conceptual targeting

The company has identified a syenitic intrusion in contact with silica-rich metasediments (the Wabamask metasedimentary complex is associated with quartzites) near the Sabot prospect area. The intrusion is interpreted as part of a regional alkaline syenitic complex (approximately 1,019 to 1,025 Ma) and is younger than the niobium-rare earth element pegmatite occurrences observed at Bardy and Blanchette (approximately 1,060 to 1,070 Ma), suggesting that at least two temporally distinct Nb-REE mineralizing events are present within NIOB's area of interest in the Grenville Proterozoic belt. Uranium-lead (U-Pb) age dating was completed in 2018 by the late Jean David (report MB201817).

Government geologists in the field observed the presence of sedimentary xenoliths within the syenitic intrusions, which indicates interaction between the alkaline magma and the silica-rich country host rocks. This geological setting has proven to be associated with major deposits, such as the Motzfeldt project in Greenland.

Alkaline intrusion-related REE systems like the Motzfeldt project can be large tonnage in some cases. Motzfeldt has reported a large, inferred resource at the Aries deposit (JORC-compliant), cited in public disclosure as 340 million tonnes grading 0.26 per cent TREO, 0.185 per cent Nb 2 0 5 and 0.46 per cent ZrO 2.

The company emphasizes that mineralization, resources or deposits on other properties are not necessarily indicative of mineralization on Sabot and such comparisons are provided for geological context only.

On Sabot, the southern contact at the centre of the property of the Syenite intrusion (Rheaume intrusive suite) is associated with bottom-lake sediment anomalies (approximately 90th percentile) in La-Nb-Y (as compiled by the government of Quebec, report PRO 2009-03). These three elements can be indicative of REE-bearing syenitic intrusions. Finally, the syenite and the metasediments are associated with REE anomalies. This observation is conceptual and requires follow-up work, including additional geochemical coverage and geological validation.

At this stage, the company's working interpretation is equally conceptual: Sabot may represent an upper portion of an alkaline system and/or a silica-rich roof/contact zone, either of which can be prospective environments for REE mineralization and other critical elements such as niobium, in certain geological settings. The company cautions that additional geochemical and geological work is required to refine these conceptual targets and to assess the extent, style and continuity of any potential mineralization.

Sabot is located in the vicinity of the Blanchette and Bardy properties, immediately north of the Blanchette project, approximately 45 kilometres northwest of La Tuque; across the area, multiple rare earth element (REE) prospects are present, some of which are associated with elevated niobium values and occur in spatial association with several alkaline intrusive suites.

"While Sabot was not initially an immediate priority for the company, results from our recent prospecting program, together with the geological setting, appear to warrant additional work," said Murray Nye, chief executive officer of North American Niobium. "Over the coming weeks, our technical team will review Sabot alongside our Quebec portfolio to determine the most effective next steps ahead of any drilling decisions."

About North American Niobium and Critical Minerals Corp.

North American Niobium is a North American mineral exploration company focused on the acquisition and development of precious, base and critical mineral assets. Its portfolio includes the Silver Lake property in British Columbia's Omineca mining division and a recently acquired land package in Quebec's Grenville province. The Quebec properties add exposure to rare earth elements (REE), niobium (Nb) and nickel-copper (Ni-Cu) occurrences, expanding the company's footprint into critical minerals that are strategically important for energy and defence applications.

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